document.write( "Question 249504: using the method
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document.write( "subtitution method to solve simultaneous equations\r
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document.write( "x=y-2
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document.write( "x+y=18 \n" );
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Algebra.Com's Answer #181710 by tutorcecilia(2152)![]() ![]() You can put this solution on YOUR website! x=y-2 \n" ); document.write( "x+y=18 \n" ); document.write( ". \n" ); document.write( "(y-2)+y=18\r \n" ); document.write( "\n" ); document.write( "2y-2=18 \n" ); document.write( "2y=18+2 \n" ); document.write( "2y=20 \n" ); document.write( "2y/2=20/2 \n" ); document.write( "y=10 \n" ); document.write( ". \n" ); document.write( "x=y-2 [substitute y=10] \n" ); document.write( "x=10-2 \n" ); document.write( "x=8 \n" ); document.write( "check by plugging in the values for x and y . \n" ); document.write( " |